ul {
    list-style-type: none;
    text-align: center;
}
ul.menu li {
    display: inline-block;
    padding: 10px 25px;
}
ul.menu li button {
    padding: 6px 20px;
}
.notes {
    width: 100%;
    display: block;
    text-align: center;
}
.grids {
    margin-top: 20px;
}
.grid {
    margin-top: 10px;
    color: lightskyblue;
}
.grid_date {
    color: lightskyblue;
}
.blue,
.red,
.green,
.black {
    margin-left: 5px;
    margin-top: 5px;
    height: 200px;
}
.blue img,
.red img,
.green img,
.black img {
    height: 200px;
    width: 100%;
}
.yellow img {
    height: 405px;
    width: 100%;
}
.blue {
    /*width: 45%;*/
    /*background: blue;*/
}
.red {
    width: 30%;
    background: red;
}
.green {
    width: 30%;
}
.yellow {
    width: 23.6%;
    height: 405px;
    margin-left: 5px;
    margin-top: 5px;
    background: yellow;
}
.black {
    width: 45%;
}
.btn_active {
    background: red;
    border: 0px;
    color: #fff;
    outline: none;
}
input#searchNote {
    width: 100%;
    padding: 20px 12px;
    font-style: italic;
    margin-top: 20px;
}
i.custom_search {
    position: absolute;
    top: 43px;
    right: 180px;
}
#portfolio_menu button {
    width: 100px;
    min-height: 20px;
    border: 0px;
    outline: none;
}
body {
    overflow-x: hidden;
}
ul {
    padding: 0;
    margin: 0;
}
/*resposive*/

@media all and (max-width: 1280px) and (min-width: 768px) {
    .colum {
        width: 100%;
    }
    ul.menu li {
        padding: 10px 6px;
    }
    .blue,
    .black {
        width: 40%;
    }
    .red,
    .green {
        width: 30%;
    }
    .yellow {
        width: 27%;
    }
}
@media only screen and (max-width: 960px) and (min-width: 620px)  {
    .colum {
        width: 100%;
    }
    ul.menu li {
        padding: 10px 30px;
    }
    ul.menu {
        overflow: hidden;
    }
    .blue,
    .black {
        width: 40%;
    }
    .red,
    .green {
        width: 30%;
    }
    .yellow {
        width: 27%;
    }
}
@media all  and (max-width: 619px) and (min-width: 480px) {
    .colum {
        width: 100%;
    }
    ul.menu li {
        padding: 10px 30px;
    }
    ul.menu {
        overflow: hidden;
    }
    .blue,
    .black {
        width: 100%;
    }
    .red,
    .green {
        width: 100%;
    }
    .yellow {
        width: 100%;
        height: auto;
    }
}
@media all and (max-width: 479px) and (min-width: 320px) {
    .colum {
        width: 100%;
    }
    ul.menu li {
        padding: 10px 15px;
    }
    ul.menu {
        overflow: hidden;
    }
    ul.menu li button {
        padding: 6px 0px;
    }
    #portfolio button {
        font-size: 10px;
        width: 50px;
    }
    .blue,
    .black {
        width: 100%;
    }
    .red,
    .green {
        width: 100%;
    }
    .yellow {
        width: 100%;
        height: auto;
    }
}
@media all and (max-width: 319px) {
    .colum {
        width: 100%;
    }
    ul.menu li {
        padding: 10px 15px;
    }
    ul.menu {
        overflow: hidden;
    }
    ul.menu li button {
        padding: 6px 0px;
    }
    #portfolio button {
        font-size: 10px;
        width: 50px;
    }
    .blue,
    .black {
        width: 100%;
        height: auto;
    }
    .red,
    .green {
        width: 100%;
        height: auto;
    }
    .yellow {
        width: 100%;
        height: auto;
    }
}